I never use grease,always use Royal Purple Synthetic oil. I have for years and it works better than zoom spout turbine oil.

Is there any particular type of Royal Purple that you use? I was looking at their website and their products. should I use this MAX-TUFF SYNTHETIC ASSEMBLY LUBRICANT or is there something else I should use?

Never have used royal purple. I use Zoomspout oil because it is used in the appliance industry and is safe for all major appliances and HVAC. It has been around forever and is inexpensive $3 for a bottle at any Ace hardware store.

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Last time I bought 6 bottles and the guy I got them from quit selling it. The Max Tuff bottle looks just like the stuff I bought. Mine says for guns, air tools, and fishing equipment. To give you an idea, you never oil a squeaky hinge on a house door as you will always have to oil it every month or so. 4 years and still no squeak. I always used zoom spout but I Will never go back as it can't compare to this stuff. I found it by mistake looking for synthetic oil for my truck. ( Isn't EBay great) Guy would send a bottle to a soldier in Iraq for every bottle sold, so I tried it. 3 of the servicers in my area use it as well. Holds up to heat very well.(Maytag dryer rollers) I have oiled rollers on dryers and been back 2-3 months later with zoom ,oiled with the synthetic and never go back. You might contact the company and see if they make the liquid not spray can for guns.

I am assuming that It has to be one of these that you use. Do you still have a bottle kicking around that you could take a look at? If you do and are willing to look at it and come back to me with what product it is that would be great.

I called the local stores that Royal Purple is sold by but neither of them had much product and told me that I would need to tell them what to order.

I look for cracks on the ribs on the belt, rollers lube unless real worn(worn bearing not rubber) and the blower only if it has play in the D so to speak on the motor shaft. It will rock slightly as you hold the blower and turn the motor shaft, if so replace. I have only changed 2 idler pulleys in 33 years so usually lube. Glides if they are thin.

I checked the blower on the motor shaft and it does have play back and forth and you can see how it is worn. So I will replace it. However there are two different blowers and I am guessing that that is because there are 2 different motors with different shafts. My motor is the 33002478. The 2 part #'s for the 2 blowers are 33001790 and 33002797. I think that it is the 1790 because it looks like that has the D shape for the shaft where the 2797 does not look that way but looks like you have to put a nut on the end of the shaft. However it is better to be safe than sorry. Is it possible for someone to verify which part number would work properly with my setup? Thanks

Just to repeat my s/n for my unit is 10632471QW and it was purchased in 1999.